. >> when justin bieber tweeted about the song it immediately started climbing the charts. >> a third new act hit it big in 2012 also. the indy rock band stored the number three hit, and it's the first time in the history that the top three songs were each by new artist. >> at any given moment if you stopped to any radio station, you would hear one of these songs. >> and britain boys grabbed the best new artist of 2012. one direction's two top albums were part of the success. >> not only when tickets being snatched up and arenas being sold out in a matter of minutes, but then the retail of the tickets were going for thousands of dollars. >> and adele, for the second straight time, her album topped the billboards, and that has not happened since michael jackson's "thriller." >> it's like there's a bunch of trees normal height, and then there's a redwood, and that redwood is adele. >> we know you are wondering what happened to gang upl style. >> yeah, i did. >> it was released too late to make a mark. so maybe for 2013 we can have more of that. >> i have seen that he has been acting a l